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Mathematics
Study Set
Precalculus
Quiz 4: Trigonometric Functions of Angles
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Question 241
Short Answer
Find the linear speed of a point traveling at a constant speed along the circumference of a circle with radius r = 32 meters and angular velocity
=
.
Question 242
Short Answer
Find the linear speed of a point traveling at a constant speed along the circumference of a circle with radius r = 18 yards and angular velocity
=
.
Question 243
Multiple Choice
Find the distance, s, a point travels along a circle over time t = 6 seconds, given the angular speed
=
And the radius r = 7 centimeters.
Question 244
Short Answer
Find the distance, s, a point travels along a circle over time t = 42 seconds, given the angular speed
=
and the radius r = 30 centimeters.
Question 245
Short Answer
Find the distance, s, a point travels along a circle over time t = 15 seconds, given the angular speed
=
and the radius r = 3 feet.
Question 246
Multiple Choice
Find the distance, s, a point travels along a circle over time t = 15 minutes, given the angular speed
= 9 rotations per second and the radius r = 7 inches. Express your answer in miles (1 mile = 5,280 ft) , and round your answer to one decimal place.
Question 247
Short Answer
Find the distance, s, a point travels along a circle over time t = 20 minutes, given the angular speed
= 7 rotations per second and the radius r = 7 inches. Express your answer in miles (1 mile = 5,280 ft), and round your answer to one decimal place.
Question 248
Short Answer
A car owner decides to upgrade from tires with a diameter of 24.5 inches to tires with a diameter 26.6 inches. If she doesn't update the onboard computer, how fast will she be traveling when the speedometer reads 67 mph? Round to the nearest mph.
Question 249
Short Answer
Electronic Signals. Two electronic signals that cancel each other out are said to be 180° out of phase, or the difference in their phases is 180°. How many radians out of phase are two signals whose phase difference is 66°?